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D-Link DWS-4026
Managed 24-Port Gigabit L2+ Unified Wireless PoE Switch

Sorry, this product is no longer available, replaced by the DWC-2000.


The DWS-4026 is D-Link’s next generation Unified Wired/Wireless Gigabit Switch with an array of advanced features and 802.11n support. With the ability to manage up to 64 Unified Wireless Access Points by itself and up to 256 in a Peer Group, the DWS-4026 is a full-featured and cost-effective mobility solution for mid-to large enterprises and service providers. Extremely versatile and flexible, the DWS-4026 can be deployed as a Wireless Controller in the core network or as a L2+ PoE Gigabit Switch at the edge depending on the requirement. By centralizing WLAN configuration and management functions, DWS-4026 enables network administrators to have control, security, redundancy, and reliability needed to scale and manage their wireless networks easily and efficiently.

Adaptable Wireless

Most of the current Wireless LAN controllers’ architecture requires wireless traffic to return to the controller for centralized processing, causing unnecessary traffic delay. The DWS-4026 offers network administrators additional options: depending on the wireless application, wireless traffic can either be tunneled back to the switch for better security control, or locally forwarded at the Access Point for optimal performance. 

Wired/Wireless Security

The DWS-4026 offers a state-of-the-art Wireless Intrusion Detection System (WIDS), which help network administrators to detect rogue Access Points and rogue clients as well as anticipate wireless threats, to prevent them from causing damage to the network. With WIDS, administrators can activate various threat detections and use RF scans to sweep the entire wireless network for a possible security breach in advance. Other wireless security features include WPA/WPA2 Enterprise, 802.11i, Captive Portal and MAC Authentication.

Seamless Mobility

Wireless clients can enjoy seamless and uninterrupted roaming from AP to AP managed by a DWS-4026 even if they are not in the same subnet. Because the DWS-4026 employs various mechanisms such as pre-authentication and key-caching, wireless users can freely “roam” the entire network without needing to re-authenticate. The additional Fast Roaming feature results in disruption-free, reliable wireless connectivity crucial for mobile applications such as Wi-Fi IP Phones and wireless PDAs. Furthermore, the DWS-4026 supports advanced “AP-AP Tunneling”, which is used to support L3 roaming for wireless clients without forwarding any data traffic to the Unified Switch. This can help to significantly reduce network traffic and save bandwidth.

Voice-Optimised Quality of Service (QoS)

The DWS-4026 is specifically designed and optimized for Voice over Wireless traffic with features such as Auto-VoIP and Voice VLAN. The Auto-VoIP feature explicitly matches VoIP streams and provides them with a better class-of-service than ordinary traffic.

Network Resiliency  

The DWS-4026 offers a “self-healing” network capability to increase the resiliency of the entire wireless network. To make up for a sudden RF signal vacuum created by any “dead” AP (AP with DC power failure, for example), the DWS-4026 automatically increases the transmit output power of the neighboring APs to expand the RF coverage, thereby “healing” the network. Also, to ensure continuous connection for current clients, the DWS-4026 performs load balancing across access points when network traffic reaches a certain threshold by forcing additional clients to associate with other access points. 

Maximized Flexibility

In addition to all its wireless capabilities, the DWS-4026 also excels as an advanced L2+ PoE Switch. Complete with dynamic routing using RIPv1/v2, ACL security, multi-layer QoS, VLAN support, IGMP/MLD Snooping as well as dual 10-Gigabit uplink support, the DWS-4026 truly enables network administrators to integrate their enterprise class wireless network with their wired infrastructure. Businesses contemplating upgrading their current wired or wireless network can deploy the DWS-4026 to take advantage of its dual-role flexibility.

Simplified Management

Multiple DWS-4026s can form a Switch Cluster, which enables network administrators to manage and configure all switches from one single “Cluster Master.” In addition, the Switch Cluster also manages information of all the Access Points as well as their associated clients. This helps to significantly simplify management and reduce maintenance efforts as the network scales up.

Actual product appearance may differ from the image displayed on this page


  • Layer

    • Layer 2+
  • Main type of ports

    • 1000BASE-T Gigabit Ethernet
  • Number of ports

    • 16 to 28 Ports
  • Type of uplink ports

    • Combo 1000BASE-T/SFP
    • Open slot
  • Switching capacity

    • 88 Gbps
  • PoE options

    • 802.3af
  • Number of PoE ports

    • 24
  • PoE power budget

    • 201 to 400W
  • Form Factor

    • Rackmountable
  • Maximum number of device clustering per group

    • 8
  • Supported unified access points

    • DWL-2600AP
    • DWL-3600AP
    • DWL-6600AP
    • DWL-8600AP
  • Access point management - number supported per unit (default/upgradeable)

    • 64
  • AP auto discovery and monitoring

  • AP authentication by local database and external RADIUS

  • Auto channel and power management

  • Centralised AP firmware upgrade

  • Fast roaming

    • L2
    • L3
  • Client location tracking support

  • WPA/WPA2-personal/enterpise

  • TKIP/AES encryption

  • Rogue AP/Client detection and mitigation

  • WIDS

  • MAC address

    • 8K
  • Spanning Tree Protocol

    • 802.1D STP
    • 802.1s MSTP
    • 802.1w RSTP
  • Link aggregation

    • 802.3ad
  • VLAN group (max static)

    • 4K
  • VLAN type

    • GVRP
    • MAC-based
    • Port-based
    • Protocol-based
  • Advanced VLAN

    • Double VLAN (Q-in-Q)
    • Voice VLAN
  • Routing table size

    • 128
  • Static route for IPv4/IPv6

    • IPv4 – 128
  • RIP v1/v2

  • Number of QoS queues per port

    • 8
  • CoS based on contents

  • Bandwidth control

    • 64 Kbps minimum granularity
  • WMM

  • ACL type

    • Ingress
  • ACL based on packet contents

  • Encryption protocol supported

    • SSH
    • SSL (v1/v2/v3)
  • 802.1X Access Control

  • RADIUS/TACACS+ authentication

  • Captive portal

  • SNMP (v1/v2c/v3)

  • RMON v1/v2

  • sFlow

  • LLDP



Device Interfaces

  • 24 10/100/1000BASE-T Gigabit Ports with Integrated 802.3af PoE
  • 4 Combo SFP Slots
  • RS-232 Console Port
  • 2 Open Slots for Optional 10-Gigabit Module

MAC Address Table

  • 8K

Switching Capacity

  • 88Gbps

Maximum Forwarding Rate

  • 65.47Mpps

Forwarding Method

  • Store and Forward

Packet Buffer Memory Size

  • 750KB

802.3af Power over Ethernet (PoE)

  • 15.4W Per Port
  • 370W Total Voltage Output
  • Auto Disable if Port Current Exceeds 350mA

Number of VLANs Per Device

  • 3,965

Flow Control

  • 802.3x Standard in Full Duplex Mode
  • Back Pressure in Half Duplex Mode
  • Head-of-Line Blocking Prevention

Quality of Service (QoS)

  • 802.1p Priority Queues (Up to 8 Queues Per Port)
  • Minimum Bandwidth Guarantee per Queue
  • Traffic Shaping per Port
  • Per-Flow Bandwidth Control
  • CoS Based on: Switch Port, VLAN, DSCP, TCP/UDP Port, TOS, Destination/Source MAC Address, Destination/Source IP Address

L2 Features

  • IGMP Snooping: 1K Multicast Groups
  • MLD Snooping
  • 802.1D/w/s Spanning Tree
  • 802.3ad Link Aggregation: Up to 32 Groups, up to 8 Ports Per Group
  • 802.1ab LLDP
  • Port Mirroring (One-to-One and Many-to-One)
  • Jumbo Frame Size: Up to 9KB


  • 802.1Q VLAN Tagging
  • 802.1V
  • Subnet-based VLAN
  • MAC-based VLAN
  • GVRP
  • Double VLAN
  • Voice VLAN

L3 Features

  • IPv4 Static Route
  • Routing Table Size: Up to 128 Static Routes
  • Floating Static Route
  • VRRP
  • Proxy ARP
  • RIP v1/v2

ACL (Access Control List)

  • ACL based on: Switch Port, MAC Address, 802.1p Priority Queues, VLAN, Ethertype, DSCP, IP Address, Protocol Type, TCP/UDP Port

LAN Security

  • RADIUS Authentication for Management Access
  • TACACS+ Authentication for Management Access
  • SSH v1/v2
  • SSL v3, TLS v1
  • Port Security: 20 MAC Addresses per Port, Trap Violation Notification
  • MAC Filtering
  • 802.1X Port-based Access Control and Guest VLAN
  • Denial of Service Protection
  • Dynamic ARP Inspection (DAI)
  • DHCP Snooping
  • Broadcast Storm Control in Granularity of 1% of link speed
  • Protected Port
  • DHCP Filtering

Management Methods

  • Web-based GUI
  • Switch Clustering
  • RADIUS Accounting
  • CLI
  • Telnet Server: Up to 5 Sessions
  • Telnet Client
  • TFTP Client
  • SNMP v1/2c/3
  • sFlow
  • Multiple Configuration Files
  • Dual Image Services
  • RMON v1: 4 Groups (Statistics, History, Alarms, Events)
  • BOOTP/DHCP Client
  • DHCP Server
  • DHCP Relay
  • SNTP
  • Dual Images
  • Port Description

Managed AP

  • 10Base-T, 100Base-TX, & 1000Base-T

WLAN Management Capability

  • Up to 64 APs per Switch
  • Up to 256 APs per Cluster
  • Up to 2,048 Wireless Users (1,024 Tunneled Users, 2,048 Non-Tunneled Users)


  • Fast Roaming1
  • Intra-Switch/Inter-Switch Roaming
  • Intra-Subnet/Inter-Subnet Roaming
  • AP-AP Tunnel

Access Control and Bandwith

  • Up to 32 SSID per AP (16 SSID per RF Frequency Band)
  • AP Load Balancing based on the number of users or utilization per AP

AP Management

  • AP Auto-Discovery
  • Remote AP Reboot
  • AP Monitoring: List Managed AP, Rogue AP, Authentication Failed AP
  • Client Monitoring: List Clients Associated with Each Managed AP
  • Ad-hoc Client Monitoring
  • AP Authentication Supporting Local Database and External RADIUS Server
  • Centralized RF/Security Policy Management
  • Visualized AP Management Tool (Supports up to 16 jpg files)
  • Unified AP Support (DWL-8600AP): Managed/Standalone

WLAN Security

  • Wireless Intrusion Detection & Prevention System (WIDS)
  • Rogue AP Mitigation
  • Rogue and Valid AP Classification based on MAC Address
  • WPA Personal/Enterprise
  • WPA2 Personal/Enterprise
  • 64/128-bit WEP Data Encryption
  • Wireless Station and AP Monitoring on RF Channel, MAC Address, SSID, Time
  • Captive Portal
  • MAC Authentication
  • Station Isolation

EMI/EMC Certifications

  • FCC Class A, ICES-003, VCCI-003, VCCI, CE, C-Tick, EN 60601-1-2

Safety Compliance

  • UL/cUL, CB


  • AC Input Power: 100 to 240 VAC, 50/60Hz Internal Universal Power Supply

Maximum Power Consumption

  • 525 Watts (with all PoE ports in operation)

Operating Temperature

  • 32o to 104oF (0o to 40oC)

Storage Temperature

  • 14o to 158oF (-10o to 70oC)

Operating Humidity

  • 10% to 90% non-condensing

Storage Humidity

  • 5% to 90% non-condensing

Dimensions (W x D x H)

  • 17.32in x 15.31in x 1.73in (440mm x 389mm x 44mm)
  • 19-inch Standard Equipment Rackmount Width, 1U Height


  • 13.23lbs (6kg)


  • 185,540 Hours


  • Limited Lifetime2

1 To demonstrate fast roaming in a PC, a wireless NIC (Network Interface Card) needs to support the fast roaming feature.
2 Limited Lifetime Warranty available only in the USA and Canada.

All references to speed are for comparison purposes only. Product specifications, size and shape are subject to change without notice, and actual product appearance may differ from that depicted herein.


Download the D-Link DWS-4026 Datasheet (PDF).